Answer this question truthfully
### Question: What are the symptoms of Vitiligo?
### Response: Flat areas of normal-feeling skin without any pigment appear suddenly or gradually. These areas have a darker border. The edges are well defined but irregular. Vitiligo most often affects the face, elbows and knees, hands and feet, and genitalia. Vitiligo affects both sides of the body equally. Vitiligo is more noticeable in darker-skinned people because of the contrast of white patches against dark skin. No other skin changes occur.